Home / 56,791.34-78,372.17-34,130.69

Finding the Fourth Proportional to 56,791.34, 78,372.17 and 34,130.69

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Solution

The fourth proportional to 56,791.34, 78,372.17 and 34,130.69 is: 47,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,791.34 : 78,372.17 = 34,130.69 : x
  2. Step 2: Convert to fraction form
    56,791.34/78,372.17 = 34,130.69/x
  3. Step 3: Cross multiply
    56,791.34x = 78,372.17 × 34,130.69
  4. Step 4: Simplify right side
    56,791.34x = 2,674,895,676.38
  5. Step 5: Solve for x
    x = 2,674,895,676.38/56,791.34
  6. Step 6: Final answer
    x = 47,100.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.